* @param prefix the prefix.
     * @param root the root of the graph.
     */
    public PrefixedObjectValueSource(String prefix, Object root) {
        super(new PrefixedValueSourceWrapper(new ObjectBasedValueSource(root), prefix));
    }

    /**
     * Wrap the specified root object, allowing the specified list of expression

            writeThrowable(se, stream, "Suppressed", prefix + "    ");
        }
        Throwable cause = t.getCause();
        if (cause != null && t != cause) {
            writeThrowable(cause, stream, "Caused by", prefix);
        }
    }

    private void writeThrowable(Throwable t, PrintStream stream, String caption, String prefix) {
        MessageBuilder builder =

 * under the License.
 */
package org.apache.maven.plugin.prefix.internal;

import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.prefix.PluginPrefixResult;
import org.eclipse.aether.repository.ArtifactRepository;

/**
 * Describes the result of a plugin prefix resolution request.
 *
 * @since 3.0
 */
class DefaultPluginPrefixResult implements PluginPrefixResult {

    }

    public String getPrefix() {
        return prefix;
    }

    public DefaultPluginPrefixRequest setPrefix(String prefix) {
        this.prefix = prefix;

        return this;
    }

    public List<String> getPluginGroups() {
        return pluginGroups;
    }

    public DefaultPluginPrefixRequest setPluginGroups(List<String> pluginGroups) {
        if (pluginGroups != null) {

 * under the License.
 */
package org.apache.maven.lifecycle.internal.stub;

import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
import org.apache.maven.plugin.prefix.PluginPrefixRequest;
import org.apache.maven.plugin.prefix.PluginPrefixResolver;
import org.apache.maven.plugin.prefix.PluginPrefixResult;
import org.eclipse.aether.repository.ArtifactRepository;

/**
 */

            hasChildren = true;
            anew = false;
        }

        @Override
        public void writeEmptyElement(String prefix, String localName, String namespaceURI) throws XMLStreamException {
            indent();
            super.writeEmptyElement(prefix, localName, namespaceURI);
            hasChildren = true;
            anew = false;
        }

        @Override

    public static boolean contains(FileSystem fileSystem, DirectoryTree tree, File file) {
        String prefix = tree.getDir().getAbsolutePath() + File.separator;
        if (!file.getAbsolutePath().startsWith(prefix)) {
            return false;
        }

        RelativePath path = RelativePath.parse(true, file.getAbsolutePath().substring(prefix.length()));

    String getPrefix();

    /**
     * Sets the prefix of the plugin.
     *
     * @param prefix The prefix of the plugin.
     * @return This request, never {@code null}.
     */
    PluginPrefixRequest setPrefix(String prefix);

    /**
     * Gets the list of group ids to scan for the plugin prefix.
     *
     * @return The list of group ids to scan for the plugin prefix, never {@code null}.
     */

  public static class ImmutableListTailSubListGenerator extends TestStringListGenerator {
    @Override
    protected List<String> create(String[] elements) {
      String[] prefix = {"f", "g"};
      String[] all = new String[elements.length + prefix.length];
      System.arraycopy(prefix, 0, all, 0, 2);
      System.arraycopy(elements, 0, all, 2, elements.length);
      return ImmutableList.copyOf(all).subList(2, elements.length + 2);
    }
  }

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.plugin.prefix;

/**
 * Resolves a plugin prefix.
 *
 * @since 3.0
 */
public interface PluginPrefixResolver {

    /**
     * Resolves the plugin prefix for the specified request.
     *